303 Error while usng wit react

[Zaeem6100]

With browser direct backend url hit it works fine but when i do button trigger call with the react app it gives me error

Backend Code
`CLIENT_ID = os.environ["CLIENT_ID"]
CLIENT_SECRET = os.environ["CLIENT_SECRET"]
REDIRECT_URI = "http://localhost:5000/api/v1/auth/callback"

os.environ['OAUTHLIB_INSECURE_TRANSPORT'] = '1'

auth_client = AuthClient(
client_id=CLIENT_ID, client_secret=CLIENT_SECRET, redirect_url=REDIRECT_URI
)
restli_client = RestliClient()

sso = LinkedInSSO(
client_id=CLIENT_ID,
client_secret=CLIENT_SECRET,
redirect_uri=REDIRECT_URI,
allow_insecure_http=True
)

@router.get("/login", tags=['LinkedIn SSO'])
async def login():
with sso:
return await sso.get_login_redirect()

@router.get("/callback")
async def oauth(code: str, request: Request):
try:
if code:
user = await sso.verify_and_process(request)
userDao = UserDAO()
token_response = auth_client.exchange_auth_code_for_access_token(code)
access_token = token_response.access_token
user = User(
lastName=user.last_name,
firstName=user.first_name,
linkedin_id=user.id,
email=user.email,
access_token=access_token
)
print(f"Auth User {user}")
userDao.update_or_insert_user(user)
frontend_url = f"http://localhost:5173/auth/callback#id={user.linkedin_id}"
return RedirectResponse(url=frontend_url, status_code=303)
except Exception as e:
raise HTTPException(status_code=400, detail=str(e))`